Check out SwitchEasy's CoverBuddy, they have a great track record, make great cases and the cases always come with lots of extras. I spoke with them yesterday and they are releasing a version of the CoverBuddy along with other cases for the new iPad tomorrow so keep an eye out. http://www.switcheasy.com/store_cat.php?cat=iPad
Belkin has new cases but they're still listed as coming soon on their site and Amazon. I preordered one of the snap shield secure ones and hope they come out soon. I like the idea of a thin case that covers even the bottom that also has a magnet to keep the smart cover folded back. We'll see if it lives up to my expectations.
I use the smart cover and the iMainGo XP (http://amzn.to/iMainGoXP) as my main cases. Smart cover for when I'm home and iMainGo XP for when I'm traveling and need more durability. I got hooked up with the iMainGo XP through work and have been addicted ever since. It's a case, stand and portable speakers. When I travel, I use it to watch movies and tv shows and the sound is awesome.